Die-casting machine.



I. T. ENLEY. DIE CASTING MACHINE. APPLICATION FILED mm. 22. 916.

Patentefl Feb. 13, 1917'.

3 SHEETS-SHEET I.

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J. T.. ENLEY;

DIE CASTINGMACHINE.

APPLICATION mm min. 22. 1915.

Patented Feb. 13, 1917.

3 SHEETSSHEET 2.

ifi. 23

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- JOHN T. ENLEY, OF PHILADELPHIA, PENNSYLVANIA.

DIE-CASTING MACHINE.

To all whom it may concern;

Be it known'that I, JOHN T. ENL'EY, a

citizen of the United States, residing at Philadelphia, in the county ofPhiladelphia and State of Pennsylvania, have invented certain new anduseful Improvements in Die-Casting Machines, of which the followin is aspecification.

y invention relates to improvements in die casting machines, the objectof the in vention beingrto provide 'a machine of the character statedwhich will permit a quick operation, and which can be, convenientlyhandled by a single operator.

A further object is to provide improved means for cutting out the s'prueand separating the die sections so as to present the casting in aconvenient .position for removal from one of the die members.

A further object is to provide an apparatus of the character statedwhich is of comparatively simple construction, strong and durable inuse.

With these and other objects in view, the invention consists in certainnovel-features of construction and combinations and arrangements ofparts 'as will be more fully hereinafter described and pointed out inthe claims.

In the accompanying drawings:

Figure 1 is a view in side elevation illustrating in full lines thenormal position of the parts for casting and in dotted lines, and

dot and dash lines other positions of parts.

Fig. 2 is a view in front elevation of Fig. I

Fig. 3 .is a view in longitudinal section through the casting pot.

Fig. 4 is a view in vertical section on the line 44 of Fig. 1, and

Fig. 5 is a View in transverse section on the line 5'5 of Fig. '4.

1,.2, 3, and 4, represent uprights connected by a rigid platform 5, andconstituting a stationary. frame. The platform 5 is provided with guideopenings 6 in line with vertical guides 7, through which vertical rods8project.

The ides 7 are integral parts of brackets 9 which are rigidly secured tothe rear uprights 3 and 4 respectively, and constitute apart of thestationary frame. The rods 8 are screw-threaded at their lower ends asshown at 10, and have inverted U-shaped yokes 11 adjustably secured tothe lower ends of the rods by nuts 12 located at oppo- Speciflcatlon ofLetters Patent.

Patented Feb. is, 1917.

Application filed March 22, 1916. Serial No. 85,769.

sits sides of the yoke, and screwed onto the re s.

The lower ends of the yokes 11 are connected by links 13 with abifurcated lever 14. This lever 14 is pivotally supported between itsends on a standard 15, and at its outer end is provided with a roller 16which is engaged by a cam lever 17. The cam lever 17 is supported in astandard 18 and is provided with a notch 19 in one end so as to receivethe roller 16 and hold the lever 14 in one of its extreme positions, aswill be more fully hereinafter described.

On the upper ends of rods 8, bearing blocks 20 are secured, and providerotary mounting for a shaft 21. A pulley 22 is keyed to the centralportion of shaft 21, and a cable 23 is secured to pulley 22, and ispassed over idle pulleys 24 suspended from the ceiling 25, and at itsfree end is. secured to a weight 26 which exerts a pull on the cable,tending to turn the pulley 22 and elevate the shaft 21 and partsconnected thereto.

27 and 28 represent the upper and lower.

.die members. The upper die member 27 is secured to a die base 29, thelatter secured to an upper platen 30. This platen 30 is provided withhangers 31, which latter are keyed to shaft 21. The lower die member 28is secured upon a lower platen 32, the latter having notched guides 33at its corners receiving and sliding upon the uprights 1, 2, s, and 4. a

-The lower platen 32 is appreciably larger than the upper platen 30, andsaid platens are normally connected by locking bars 34. These bars 34are pivotally connected to brackets 35 on lower platen 32, and at theirfree ends are provided with cam levers 36 which engage over the upperface of upper platen 30, and clamp the parts in such position that thedie members 27 and 28 are secured together.

The lower platen 32 is provided at its sides with eyes 37, receivinghooks 38 on cables 39. The cables 39 are passed over pulleys 40suspended from the ceiling 25, and provided at their free ends withweights 41 which tend to elevate the lower platen 32 or rather operateas counterweights to balance the same.

A locking'lever 42 is pivotally supported between its ends on one of thehangers 31, and is provided at its inner end with a notch 43 to receivea pin 44 fixed to bracket 9.

This locking lever 42 holds the hanger 31 against lateral swingingmovement, and

thereby prevents any turning movement of shaft 21. I

As above stated, the shaft 21 is adapted to be turned by the weight 26,as the cable 23 is secured to one side of the ulley 22, sothat thedownward pull of weight 26 tends to turn the pulley.

45 represents a casting pot which 18 located below the lower platen 32,and is provided with a plunger 46 which is movable in a passage 47, anddischarges the molten metal through a nozzle 48. Nozzle 48 registerswith a tube 49 secured in the center of lower platen 32, andcommunicating with the gate 50 in the lower die or mold section 28.

The plun r 46 is connected by a Imk 51 with one en of alever 52. Lever52 is pivotally supported between its ends on a bracket 53 fixed to thecasting pot 45, and at ts other end connected by .1. link 54 with a handlever 55. Lever 55 has a pivotal support 56 on upright 1, and is locatedconvemently to lever 17.

57 represents m improved sprue cutter which is supporte in the upperplaten 30, .die base 29, and upper die or mold member and pin connection60 with the-sprue cutter 57.

The operation of my improved die casting machine is as follows:

The several views of the drawing illustrate in full lines the normalpositions of the several parts for casting. The operator first moveslever 55 to the position shown in dotted lines in Fig. 1, and thismovement of the lever, through the medium of link 54, lever 52, and link51, causes the plunger 46 to eject a quantity of metal sufiiciently tofill the mold.

' After lever 55 is returned to its normal Vertical position, lever 17is swung to the position shown in dotted lines in Fig. 1, and thismovement of lever 17, through the medium of lever 14, elevates the rods8, cansing both platens 30 and 32 with the parts carried thereby, to beelevated to the position shown in dotted lines in Fig. 1. When in thisposition, the lever 58 is moved downwardly to move the sprue'eutter 57down-" wardly, and eject the sprue through the tube upper die member 27.

The operator then moves lever 42 to release the same from pin 43, when.the weight 26 will cause the shaft 21 to turn by reason of theengagement of cable 23 to pulley 22. This turning movement of shaft 21will swing the upper platen 32 with its die base 29 and die 27 to theposition shown in dot and dash lines in Fig.1, presenting the casting ina convenient position for removal' from the upper die member.

As soon as the casting is removed, the upper platen is manually swungback to its normal lposition, when lever 42 engages pin 43 and olds theupper platen against pivotal movement. The lever 17 is then, oper-' atedto permit the upper platen to lower until the die members 27 and 28 aretogether, when the locking bars 34 will be returned to their lockingposition, and the machine will be ready for operation as before.

I would have it understood that while the weight 26 is suificient toswing the upper laten to the position shown in dot and dash ines inFig.1, it is not sufiicient to overcome the weight of the rods 8, combinedwith the upper platen and parts carried thereby, hence the upper platenwill move downwardly when permitted by the lever 17 The combined weights26 and 41 tend to balance the. parts, but are not sufiicient to exert anupward movement or hold the parts in their upward position unassisted sothat when the lower platen 32 is released, it will fall without unduejar to normal position.

I would have it understood that my improved machine is capable of usewith various forms and sizes of die members.

Various slight changes might be made in the general form and arrangementof parts described without departing from my invention, and hence I donot limit myself to the precise details set forth, but consider myselfat liberty to make such changes and alterations as fairly fall withinthe spirit and scope of the appended claims.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent is: q

1. In a die casting machine, the combination with a mold comprising twomembers, means for raising said members while they are together, andmeans for separating the molds after they have been raised,substantially as described. 8 2. In a die casting machine,thecombination with a two member mold, means for en- I mold members areseparated, substantially as described.

3. In a die casting machine, the comb nation with a mold comprising twomembers,

means for raising said members while they are together, means forseparating the molds after they have been raised, and means for movingone of the mold members laterally relative to the other, substantiallyas described.

4. In a die casting machine, the combination with a frame, of upper andlower platens, mold members supported by the respective platens, meansfor simultaneously moving both platens, and means for separating andafterward swinging the upper platen laterally relative to the frame andto the other platen, substantially as described,

5. In a die casting machine, the comb1nation with a frame, a lowerplaten guided in its movement on the frame, an upper platen,

in the frame, a shaft mounted to turn at the upper ends of said rods, apulley secured to the shaft, a weighted cable secured to the pulley andtending to turn the pulley, an upper platen secured to turn with theshaft, and carrying a mold member, a lower platen carrying a moldmember, means normally locking the platens together, and meansforraising and lowering the rods, substantially as described.

' 7. In a die casting machine, the combina tion with a frame, verticalrods supported in the frame, a shaft mounted to turn at the upper endsof said rods, a pulley secured to the shaft, a weighted cable secured tothe pulley and tending to turn the pulley, an upper platen secured toturn with the shaft and carrying a mold member, a lower platen carryinga mold'member, locking levers pivotally connected to the lower platenand having cams thereon engaging over the upper platens, and means forraising and lowering the-rods, substantially as described.

8. In a die casting machine, the combination with a frame, vertical rodssupported in,the frame, a shaft mounted to turn at the upper ends ofsaid rods, a pulley secured to the shaft, a weighted cable secured tothe pulley and tending to turn the pulley, an

upper platen securedto turn with the shaft, and carrying a mold member,a lower platen carrying a mold member, a bifurcated lever pivotallysupported between its ends and connected to both of said rods, saidbifurcated lever having a roller at its free end, and a cam leverengaging the roller of the bifurcated lever. and adapted to raise andlower said rods, substantially as described.

'9. In a. die casting machine, the combination with a frame,verticalrods supported in the frame, a. shaf-tmounted to turn at theupper ends of said rods, a pulley secured to the shaft, a Weighted cablesecured .to the pulley and tending to 'turn the pulley, an

' upper platen secured to turn with the shaft and carrying a moldmember, a lower platen carrying a mold. member, locking levers pivotallyconnected to the lower platen and having cams. thereon engaging ever theupper platens,-a bifurcated lever pivotally supported between its endsand connected to both of said rods, said bifurcated lever having aroller at its free end, and a cam lever engaging the roller-of thebifurcated lever andadapted to raise and lower said rods, substantiallyas described.

10. In a die casting machine, the combination with a frame, upper andlower platens normally connected and movable in the frame, mold memberscarried by the respective platens, and normally together, means forraising and lowering the platens, means permitting the downward movementof the lower platen after the platens are elevated, whereby the-moldmembers are separated, said upper platen having a pivotal support, andmeans for swingingtlie upper platen laterally on its pivotal support,substantially as described. r

11. In a die casting machine, the combination with a frame, upper andlower platens normally connected and movable in the frame, mold memberscarried by the respective platens, and normally together, means forraising and lowering the platens, means permitting the downward movementof the lower platen after the platens are elevated, whereby the mold*members are separated, said upper platen having a pivotal support, alocking lever normally holding the upper platen against pivotalmovement, and means compelling the upper platen to swing when saidlocking lever is released, substantially as described.

12. In a die casting machine, the combination with a frame, of verticalrods supported in the frame, a shaft carried by the upper ends of therods, an upper platen secured to the shaft, means tending to turn theshaft and swing the platen laterally relative to the frame, a lockinglever engaging the frame and normally holding the platen. againstlateral movement, a lower platen movable in the frame, mold memberscarried by the respective platens, devices normally locking the platenstogether, and weighted cables connecteclfto the lower platen tending toelevate the latter, sub. stantially as describedi v I V,

18. In a die casting machine, the combination with a frame, of upper andlower platens movable vertically relative to the frame, mold members onthe respective platens, a castingpot below the lower platen having anozzle registering with the gate in the mold, means for forcing meta";from the casting pot into the mold, means for elefor moving one of themold members later- 'ally relative to the other, substantially asdescribed. f

In testimony. whereof I have signed my 20 name. to this specification inthe presence of two subscribing witnesses.

" JOHN T. ENLEY. -Witnesses:

HARRY D. B CHAS. E, Bo a?

